List of rivers of Connecticut

Most of Connecticut's rivers flow into Long Island Sound and from there the waters mix into the Atlantic Ocean. A few extremely eastern rivers flow into Block Island Sound. The list is arranged by drainage basin from east to west, with respective tributaries indented from downstream to upstream under each larger stream's name.

By drainage basin (east to west)

Block Island Sound

Pawcatuck River – easternmost CT river basin
- Shunock River
- Ashaway River (Rhode Island)
  - Green Fall River
- Wood River

Long Island Sound

Mystic River
- Whitford Brook
- Pequotsepos River
Poquonock River
Thames River
- Oxoboxo River
- Shetucket River
  - Quinebaug River
    - Pachaug River
    - Blackwell Brook
    - Moosup River
    - Five Mile River
    - Little River (Quinebaug River tributary)
    - French River
  - Little River (Shetucket River tributary)
  - Merrick Brook
    - Beaver Brook
  - Natchaug River
    - Mount Hope River
      - Fenton River
    - Bigelow Brook
    - Still River (Natchaug River tributary)
  - Willimantic River
    - Tenmile River
    - Hop River
      - Skungamaug River
- Yantic River
Niantic River
Pattagansett River
Fourmile River
Threemile River
Black Hall River

Connecticut River
- Back River
- Lieutenant River
- Falls River
- Eightmile River
- Deep River
- Salmon River
  - Moodus River
  - Blackledge River
  - Jeremy River
- Sumner Brook
  - Pameacha Creek
- Mattabesset River
  - Coginchaug River
- Hockanum River
  - Tankerhoosen River
- Park River – also known as Hog River and Little River
  - North Branch Park River
  - South Branch Park River
- Podunk River
- Farmington River
  - Pequabu River
    - Pequabuck River
  - Nepaug River
    - Poland River
  - East Branch Farmington River
    - Hubbard River
  - West Branch Farmington River
    - Still River
      - Mad River
- Scantic River
  - Watchaug River
Patchogue River
Menunketesuck River
Indian River (Clinton)
Hammonasset River
Neck River
East River
West River (Guilford)
Branford River
Farm River

Quinnipiac River
- Muddy River
- Tenmile River
  - Mountain Brook
- Eightmile River
Mill River
West River
- Sargent River
Cove River
Oyster River
Indian River (Milford)
Wepawaug River

Housatonic River
- Farmill River
- Naugatuck River
  - Mad River
- Halfway River
- Pomperaug River
  - Nonnewaug River
  - Weekeepeemee River
- Pootatuck River
- Shepaug River
  - Bantam River
  - Marshepaug River
- Still River
- West Aspetuck River
  - East Aspetuck River
- Rocky River
- Ten Mile River
- Hollenbeck River
- Blackberry River
  - Whiting River
- Konkapot River
Pequonnock River
Ash Creek
- Rooster River
Mill River
Saugatuck River
- West Branch Saugatuck River
- Aspetuck River
- Little River
Norwalk River
- Silvermine River

Fivemile River
Noroton River
Rippowam River – also known as Mill River in its lower end in Stamford
Mianus River
Byram River – Westernmost river basin in Connecticut

New York Harbor

Hudson River (New York)
- Croton River (New York)
  - Titicus River

References

"USGS Geographic Names Information Service". Retrieved 2007-07-17.
"Professor Higbee's Stream Maps of New England". Vivid Publishing, Inc. 1995. Retrieved 2007-07-17.

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Connecticut portal

Rivers of Connecticut by drainage system

Long Island Sound

Black Rock Harbor	Ash Creek Rooster River
Bridgeport Harbor	Pequonnock River
Connecticut River Watershed	Blackledge River Coginchaug River Connecticut River Duck River Eightmile River Falls River Farmington River Hockanum River Hubbard River Jeremy River Lieutenant River Mattabesset River Nepaug River Pameacha Creek Park River Pequabuck River Podunk River Salmon River Scantic River
Housatonic River Watershed	Blackberry River East Aspetuck River Housatonic River Konkapot River Mad River Naugatuck River Pomperaug River Rocky River Schenob Brook Shepaug River Still River Ten Mile River Whiting River
Little Narragansett Bay (Pawcatuck River Watershed)	Ashaway River Green Fall River Pawcatuck River Shunock River Wood River
Milford Harbor	Wepawaug River
New Haven Harbor	Mill River Quinnipiac River West River
Norwalk Harbor (Norwalk River Watershed)	Norwalk River Silvermine River
Saugatuck River Watershed	Aspetuck River Saugatuck River
Thames River Watershed	Basset Brook Beaver Brook Bigelow Brook Fenton River Fishers Brook Five Mile River French River Hop River Little River Merrick Brook Moosup River Mount Hope River Natchaug River Oxoboxo River Pachaug River Quinebaug River Shetucket River Thames River Willimantic River Yantic River
Others	Black Hall River Byram River Cove River Farm River Hammonasset River Indian River Mianus River Mill River (Fairfield) Mystic River Niantic River Noroton River Oyster River Rippowam River